CN103246071B - A kind of 3D display device - Google Patents
A kind of 3D display device Download PDFInfo
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- CN103246071B CN103246071B CN201310156232.1A CN201310156232A CN103246071B CN 103246071 B CN103246071 B CN 103246071B CN 201310156232 A CN201310156232 A CN 201310156232A CN 103246071 B CN103246071 B CN 103246071B
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
- G02B30/20—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes
- G02B30/26—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the autostereoscopic type
- G02B30/27—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the autostereoscopic type involving lenticular arrays
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
- G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/0093—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 with means for monitoring data relating to the user, e.g. head-tracking, eye-tracking
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
- G02B30/20—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes
- G02B30/26—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the autostereoscopic type
- G02B30/30—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the autostereoscopic type involving parallax barriers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/30—Image reproducers
- H04N13/302—Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays
- H04N13/31—Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays using parallax barriers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/30—Image reproducers
- H04N13/324—Colour aspects
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/30—Image reproducers
- H04N13/356—Image reproducers having separate monoscopic and stereoscopic modes
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B2207/00—Coding scheme for general features or characteristics of optical elements and systems of subclass G02B, but not including elements and systems which would be classified in G02B6/00 and subgroups
- G02B2207/123—Optical louvre elements, e.g. for directional light blocking
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
The invention discloses a kind of 3D display device, first grating layer with the poroid transmission region of array arrangement is set in the light emission side of display panel, the first grating layer arranges second grating layer with the poroid transmission region of array arrangement.Pinhole imaging system condition whether is met by regulating the overlapping region size of each poroid transmission region in the first grating layer and the second grating layer, the switching that state and 3D show state is shown to realize 2D, when 3D shows state, regulate the overlapping region that every a pair poroid transmission region projects on a display panel, the region making it reach pinhole imaging system condition to be less than a pixel cell, realize the adjustment to sub-pixel unit emergent light angle each in display panel, and then realize left-eye image and eye image converges at diverse location respectively, realize bore hole 3D display, blocking light can be reduced relative to blocking striped, avoid lowering display brightness, realize the 3D display of high brightness.
Description
Technical field
The present invention relates to 3D display technique field, particularly relate to a kind of 3D display device.
Background technology
In daily life, people utilize two eyes to observe to have the external scene of space multistory sense around, three-dimensional (3D) display technique utilizes binocular stereo vision principle to make people obtain three dimensions sense exactly, its cardinal principle makes the left eye of beholder and right eye receive different images respectively, the position difference produced by the interpupillary distance between beholder two, make two sub-pictures of existence " binocular parallax " form a pair " stereo pairs ", and " stereo pairs " make beholder produce stereoscopic sensation after merging via brains analysis.
At present, 3D display technique has bore hole formula and the large class of spectacle two.So-called bore hole formula is exactly by carrying out special process on a display panel, the 3D video image through coded treatment is independently sent into the right and left eyes of people, thus makes user without the need to bore hole experiencing stereo perception by anaglyph spectacles.
At present, the display device realizing bore hole 3D display is arrange the veils such as optical barrier (Barrier) or grating, as raster pattern, lenticule, liquid crystal lens etc. in the display screen light emission side of such as liquid crystal display (LCD).Wherein, raster pattern is the direct of travel that the palisade optical barrier installing disparity barrier before display screen controls or shuts out the light, and allows two, left and right can receive different impacts simultaneously, produces parallax and then can be fused into stereopsis in the brain.
At present, can form raster pattern barrier in several ways, such as, less expensive printing film can be used to realize raster pattern barrier, the figure of most printing film is the strip similar to dot structure or OBL striped; Also can adopt can switch liquid crystal film as raster pattern barrier formed stereo display, its principle is the same with printing film grating, difference is that liquid crystal film can realize the switching of 2D display state and 3D display state, namely carry out can opening liquid crystal film when 3D shows state to realize 3D display at needs, do not needing to carry out 3D display, when namely 2D shows state, can liquid crystal film closed.
Current raster pattern barrier is under 3D display state, the striped that blocks formed is all generally strip or oblong-shaped, this striped that blocks is while realizing 3D display effect, the brightness of meeting because reducing display to blocking of light, affect the visual experience of beholder, this also becomes the obstacle of display bore hole 3D Technique Popularizing application.
Summary of the invention
Embodiments provide a kind of 3D display device, show in order to realize high brightness 3D.
A kind of 3D display device that the embodiment of the present invention provides, comprise: display panel, be positioned at described display panel light emission side and there is the first grating layer of the poroid transmission region of array arrangement, to be positioned on described first grating layer and there is the second grating layer of the poroid transmission region of array arrangement, and regulating the relative shift of described first grating layer and the second grating layer to show state and 3D and show to realize 2D the regulating device that state switches; Wherein,
The poroid transmission region that described first grating layer has and the poroid transmission region one_to_one corresponding that described second grating layer has; There is in described display panel the pixel cell of array arrangement;
When 2D shows state, the overlapping region that every a pair poroid transmission region projects on a display panel covers the region of at least one pixel cell;
When 3D shows state, the overlapping region that every a pair poroid transmission region projects on a display panel is less than the region of a pixel cell.
The beneficial effect of the embodiment of the present invention comprises:
A kind of 3D display device that the embodiment of the present invention provides, in the light emission side of display panel, first grating layer with the poroid transmission region of array arrangement is set, first grating layer arranges second grating layer with the poroid transmission region of array arrangement, the wherein poroid transmission region one_to_one corresponding that has of the poroid transmission region that has of the first grating layer and the second grating layer, by regulating the overlapping region size of each poroid transmission region in the first grating layer and the second grating layer whether to meet pinhole imaging system condition, show to realize 2D the switching that state and 3D show state.The relative shift of the first grating layer and the second grating layer is regulated especially by regulating device, when 2D shows state, regulate the overlapping region that every a pair poroid transmission region projects on a display panel, make it cover the region of at least one pixel cell, the image of display panel display realizes normal display after often pair of poroid transmission region; When 3D shows state, regulate the overlapping region that every a pair poroid transmission region projects on a display panel, the region making it reach pinhole imaging system condition to be less than a pixel cell, realize the adjustment to sub-pixel unit emergent light angle each in display panel, and then realize left-eye image and eye image converges at diverse location respectively, realizing bore hole 3D and show, can blocking light be reduced relative to blocking striped, avoid lowering display brightness, realize the 3D display of high brightness.
Accompanying drawing explanation
Fig. 1 is the principle schematic of pinhole imaging system;
The structural representation of the 3D display device that Fig. 2 provides for the embodiment of the present invention;
The 3D display device that Fig. 3 a and Fig. 3 b is respectively the embodiment of the present invention to be provided shows the principle schematic of state and 3D display state at 2D;
Fig. 4 a and Fig. 4 b to be respectively under 2D display state and under 3D display state, the overlapping region schematic top plan view of each poroid transmission region in the first grating layer and the second grating layer;
Fig. 5 a and Fig. 5 b to be respectively under 2D display state and under 3D display state, each poroid transmission region schematic cross-section in the first grating layer and the second grating layer;
The schematic diagram of the poroid transmission region in the 3D display device that Fig. 6 provides for the embodiment of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the embodiment of the 3D display device that the embodiment of the present invention provides is described in detail.
The 3D display device that example of the present invention provides utilizes the principle of pinhole imaging system, brief description is carried out to the condition of pinhole imaging system below, as shown in Figure 1, if the height of luminous object is h, the aperture of grating is d, and luminous object is u to the distance of grating and object distance, the critical distance of pinhole imaging system is v, can be obtained by Similar Principle of Triangle: v/d=(v+u)/h, therefore, critical distance v=ud/(h-d).As can be seen from formula, when the height h of luminous object is greater than the aperture d of grating, critical distance v be on the occasion of, when the height h of luminous object is less than the aperture d of grating, critical distance v is negative value, meaningless, when the height h of luminous object equals the aperture d of grating, critical distance v is infinitely great, also meaningless.Therefore, an essential condition of pinhole imaging system is the aperture d that the height h of luminous object must be greater than grating, and namely the size of pixel cell must be greater than the aperture of grating.When the height h of luminous object is less than or equal to d, no matter be placed on where as screen, as the picture that screen all be can't see handstand, namely the light transmition direction of luminous object does not change.
According to the condition of above-mentioned pinhole imaging system, a kind of 3D display device that the embodiment of the present invention provides, as shown in Figure 2, comprise: display panel 01, be positioned at display panel 01 light emission side and there is the first grating layer 02 of the poroid transmission region of array arrangement, to be positioned on the first grating layer 02 and there is the second grating layer 03 of the poroid transmission region of array arrangement, and regulating the relative shift of the first grating layer 02 and the second grating layer 03 to show state and 3D and show to realize 2D the regulating device 04 that state switches; Wherein,
The poroid transmission region that first grating layer 02 has and the poroid transmission region one_to_one corresponding that the second grating layer 03 has; There is in display panel 01 pixel cell 05 of array arrangement;
When 2D shows state, as shown in Figure 3 a, the overlapping region (in figure shown in dotted line) that every a pair poroid transmission region projects on display panel 01 covers the region of at least one pixel cell 05;
When 3D shows state, as shown in Figure 3 b, the overlapping region (in figure shown in dotted line) that every a pair poroid transmission region projects on display panel 01 is less than the region of a pixel cell 05.
In the specific implementation, above-mentioned display panel 01 can liquid crystal (LCD) display panel, organic electroluminescent (OLED) display panel, plasma (PDP) display panel or cathode ray (CRT) display etc., does not limit at this.
In the 3D display device that the embodiment of the present invention provides, whether the overlapping region that in each poroid transmission region had by regulating the first grating layer 02 and the second grating layer 03, each poroid transmission region is mutual meets the condition of pinhole imaging system, namely the sizableness of pixel cell is in the size of luminous object, the sizableness of overlapping region, in the pore size of grating, realizes 2D and shows the switching that state and 3D show state.
Particularly, show in order to the size of the overlapping region making each poroid transmission region in the first grating layer 02 and the second grating layer 03 can meet 2D respectively the condition that state and 3D show state.Namely under 2D display state, according to the condition of above-mentioned pinhole imaging system, as shown in Figure 3 a, the overlapping region (i.e. the aperture of grating) of each poroid transmission region in the first grating layer 02 and the second grating layer 03 is needed to be not less than the size (i.e. luminous object) of pixel cell 05; Under 3D display state, as shown in Figure 3 b, according to the condition of above-mentioned pinhole imaging system, the overlapping region (i.e. the aperture of grating) of each poroid transmission region in the first grating layer 02 and the second grating layer 03 is needed to be less than the size (i.e. luminous object) of pixel cell 05.In the specific implementation, if the aperture of each poroid transmission region in the first grating layer 02 and the second grating layer 03 is set to be greater than a pixel cell, such as during two pixel cells, can be difficult to switch to 3D state from 2D state, further, the aperture of each poroid transmission region is larger, for guaranteeing to switch to 3D state from 2D state, need the black shield portions between each poroid transmission region to arrange comparatively greatly, greatly can reduce display brightness and resolution.If when being arranged to be less than a pixel cell in the aperture of each poroid transmission region in the first grating layer 02 and the second grating layer 03, only can meet the pinhole imaging system condition that 3D shows state, the switching that 2D shows state cannot be carried out.Therefore, for the display realized as far as possible under 2D state has higher resolution and less luminance loss, can can meet again the condition of pinhole imaging system under 3D state simultaneously, in the specific implementation, general as shown in Figure 3 a and Figure 3 b shows by the position one_to_one corresponding of every a pair poroid transmission region and each pixel cell 05, i.e. the equal one_to_one corresponding in position of the poroid transmission region that has of the poroid transmission region that has of the first grating layer 02 and the second grating layer 03 and pixel cell 05.
Fig. 4 a and Fig. 4 b to be respectively under 2D display state and under 3D display state, the overlapping region schematic top plan view of each poroid transmission region in the first grating layer 02 and the second grating layer 03.Fig. 5 a and Fig. 5 b to be respectively under 2D display state and under 3D display state, each poroid transmission region schematic cross-section in the first grating layer 02 and the second grating layer 03.
Further, in the specific implementation, generally poroid transmission region each in the first grating layer is set to the 60%-90% accounting for the first grating layer total area, namely in the first grating layer, black shield portions accounts for the 10%-40% of the first grating layer total area; Poroid transmission region each in second grating layer is set to the 60%-90% accounting for the second grating layer area, namely in the second grating layer, black shield portions accounts for the 10%-40% of the second grating layer total area, so that between the first grating layer and the second grating layer after relative shift, black shield portions is utilized to regulate the size of the overlapping region of each poroid transmission region in two-layer grating layer.
In the specific implementation, the first grating layer and/or the second grating layer generally for the grating layer be prepared from by black matrix material, black matrix material can be prepared each poroid transmission region.
Further, in order to ensure when 2D shows state, the bright dipping region of blocking the pixel cell of display panel 01 that each poroid transmission region in first grating layer 02 and the second grating layer 03 is less, it is all identical that each poroid transmission region that each poroid transmission region that the first grating layer 02 can be had and the second grating layer 03 have is set to shape and size, namely the first grating layer 02 is consistent with the inner structure of the second grating layer 03, and both can exchange up and down.
Further, in order to ensure that 3D display device has less luminance loss under 2D display state, the shape of each poroid transmission region that each poroid transmission region that the first grating layer 02 can be had has with the second grating layer 03 is set to the shape of each pixel cell consistent, can be such as square or circular, in this no limit.
The shape of each poroid transmission region had for the first grating layer 02 below, each poroid transmission region that the second grating layer 03 has and each pixel cell is rectangle and is described, wherein, as shown in Figure 6, a pixel cell is made up of RGB RGB tri-sub-pixel unit, the width of a pixel cell is x, and the length of a pixel cell is y.
Particularly, regulate the relative shift of the first grating layer and the second grating layer to show state and 3D and show to realize 2D the regulating device 04 that state switches, specifically can comprise:
Drive the first grating layer along the first driver part of the capable bearing of trend translation of pixel cell; And/or,
Drive the second grating layer along the second driver part of the capable bearing of trend translation of pixel cell.
In the specific implementation, 2D show mutually switch between state and 3D display state time, can only drive the first driver part, as shown in Figure 2, make relative second grating layer 03 of the first grating layer 02 along capable bearing of trend (direction of arrow) translation of pixel cell; Also can only drive the second driver part, make relative first grating layer 02 of the second grating layer 03 along capable bearing of trend (direction of arrow) translation of pixel cell; Certainly, in order to save the displacement of physical construction, the first driver part and the second driver part can also be driven simultaneously, making the first grating layer and the relative translation simultaneously of the second grating layer, realizing the overlapping region size of each poroid transmission region in adjustment two grating layer.In the specific implementation, can under 3D display state, adjust the first grating layer and the second grating layer relative displacement (n+1/4) x, wherein n is integer.
In the specific implementation, first driver part and the second driver part can pass through step motor, gear co-axially fixed with the output shaft of step motor, and the tooth bar be arranged on the first grating layer and the second grating layer realizes the first corresponding grating layer or the translation motion of the second grating layer, certainly, also can be realized by other micromachines, in this no limit.
Further, according to pinhole imaging system principle, meeting under pinhole imaging system condition, as shown in Figure 1, image-forming range v
0can be reduced to: v
0=Eu/h, wherein E is the distance of human eye two pupil, v
0for image-forming range.According to this formula, in the specific implementation, the 3D display device that the embodiment of the present invention provides, can also comprise: the 3rd driver part regulating the spacing of display panel 01 and the first grating layer 02; Be arranged at the signal gathering unit in display panel front, this signal gathering unit has the distance acquisition module for gathering range information between beholder's face and display panel on front side of display panel; The signal processing unit be connected with distance acquisition module and the 3rd driver part signal, drive singal is generated when the range information change that distance acquisition module gathers, 3rd driver part regulates the relative distance of display panel and the first grating layer according to drive singal, to reach according to beholder and distance adjustment first grating layer of display panel and the spacing of display panel, realize the best viewing effect that 3D shows state.
Such as: take resolution as the 3D display device of 10 inches of 1280*800 be example, wherein, the width of each sub-pixel unit is about 55 μm, is highly about 180 μm; Then in the first grating layer and the second grating layer, the aperture width of each poroid transmission region is 160 μm, and be highly 180 μm, the distance of human eye two pupil is generally 6.5cm.If obtain beholder in the viewing of distance display panel 1.4m place by detecting, can show that the placement distance of the first grating layer distance display panel should be about 2mm by calculating, regulate the distance between the first grating layer and display panel by the 3rd driver part, the best 3D viewing effect of beholder can be realized.
A kind of 3D display device that the embodiment of the present invention provides, in the light emission side of display panel, first grating layer with the poroid transmission region of array arrangement is set, first grating layer arranges second grating layer with the poroid transmission region of array arrangement, the wherein poroid transmission region one_to_one corresponding that has of the poroid transmission region that has of the first grating layer and the second grating layer, by regulating the overlapping region size of each poroid transmission region in the first grating layer and the second grating layer whether to meet pinhole imaging system condition, show to realize 2D the switching that state and 3D show state.The relative shift of the first grating layer and the second grating layer is regulated especially by regulating device, when 2D shows state, regulate the overlapping region that every a pair poroid transmission region projects on a display panel, make it cover the region of at least one pixel cell, the image of display panel display realizes normal display after often pair of poroid transmission region; When 3D shows state, regulate the overlapping region that every a pair poroid transmission region projects on a display panel, the region making it reach pinhole imaging system condition to be less than a pixel cell, realize the adjustment to sub-pixel unit emergent light angle each in display panel, and then realize left-eye image and eye image converges at diverse location respectively, realizing bore hole 3D and show, can blocking light be reduced relative to blocking striped, avoid lowering display brightness, realize the 3D display of high brightness.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (9)
1. a 3D display device, it is characterized in that, comprise: display panel, be positioned at described display panel light emission side and there is the first grating layer of the poroid transmission region of array arrangement, to be positioned on described first grating layer and there is the second grating layer of the poroid transmission region of array arrangement, and regulating the relative shift of described first grating layer and the second grating layer to show state and 3D and show to realize 2D the regulating device that state switches; Wherein,
The poroid transmission region that described first grating layer has and the poroid transmission region one_to_one corresponding that described second grating layer has; There is in described display panel the pixel cell of array arrangement;
When 2D shows state, the overlapping region that every a pair poroid transmission region projects on a display panel covers the region of at least one pixel cell;
When 3D shows state, the overlapping region that every a pair poroid transmission region projects on a display panel reaches the region that pinhole imaging system condition is less than a pixel cell.
2. 3D display device as claimed in claim 1, is characterized in that, the position one_to_one corresponding of described every a pair poroid transmission region and each pixel cell.
3. 3D display device as claimed in claim 1, it is characterized in that, each poroid transmission region shape and size that each poroid transmission region that described first grating layer has and described second grating layer have are all identical.
4. 3D display device as claimed in claim 3, it is characterized in that, the shape of each poroid transmission region that described first grating layer has and each poroid transmission region that described second grating layer has is square or circular.
5. 3D device as claimed in claim 1, it is characterized in that, in described first grating layer, each poroid transmission region accounts for the 60%-90% of the described first grating layer total area; In described second grating layer, each poroid transmission region accounts for the 60%-90% of the described second grating layer total area.
6. 3D display device as claimed in claim 1, it is characterized in that, described regulating device comprises:
Drive the first grating layer along the first driver part of the capable bearing of trend translation of pixel cell; And/or,
Drive the second grating layer along the second driver part of the capable bearing of trend translation of pixel cell.
7. 3D display device as claimed in claim 1, is characterized in that, also comprise:
Regulate the 3rd driver part of the spacing of described display panel and described first grating layer;
Be arranged at the signal gathering unit in described display panel front, described signal gathering unit has the distance acquisition module for gathering range information between beholder's face and described display panel on front side of described display panel;
The signal processing unit be connected with described distance acquisition module and described 3rd driver part signal, generate drive singal when the range information change that described distance acquisition module gathers, described 3rd driver part regulates the relative distance of described display panel and described first grating layer according to described drive singal.
8. the 3D display device as described in any one of claim 1-7, is characterized in that, described first grating layer and/or the second grating layer are the grating layer be prepared from by black matrix material.
9. the 3D display device as described in any one of claim 1-7, is characterized in that, described display panel is liquid crystal LCD display panel, organic electroluminescent OLED display panel, plasma P DP display panel or CRT display.
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| CN201310156232.1A CN103246071B (en) | 2013-04-28 | 2013-04-28 | A kind of 3D display device |
| PCT/CN2013/078214 WO2014176820A1 (en) | 2013-04-28 | 2013-06-27 | 3d display device |
| US14/370,397 US9869870B2 (en) | 2013-04-28 | 2013-06-27 | 3D display device with adjustable grating layer |
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| CN201310156232.1A CN103246071B (en) | 2013-04-28 | 2013-04-28 | A kind of 3D display device |
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| CN103246071A CN103246071A (en) | 2013-08-14 |
| CN103246071B true CN103246071B (en) | 2015-10-14 |
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| US (1) | US9869870B2 (en) |
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| US20240015275A1 (en) * | 2020-12-22 | 2024-01-11 | Boe Technology Group Co., Ltd. | Display apparatus and method for manufacturing same |
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| CN1847927A (en) * | 2005-04-04 | 2006-10-18 | 三星电子株式会社 | Stereoscopic display switching between 2D/3D images using polarization grating screen |
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| WO2014176820A1 (en) | 2014-11-06 |
| US20160116752A1 (en) | 2016-04-28 |
| US9869870B2 (en) | 2018-01-16 |
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